package com.itheima.mm.mapper;

import org.apache.ibatis.annotations.Mapper;

/**
 * @Description TagMapper
 * @Author mylee
 * @Date 2023-09-26
 */
@Mapper
public interface TagMapper {

    /**
     * 根据学科Id统计学科标签
     *
     * @return
     * @param: courseId
     **/
    Integer countByTag(Integer courseId);
}
